Rename "puzzles"

TWIC, Chessbase, Emrald, and every other real chess site in the world calls them puzzles.

The biggest issue isn't necessarily the name, but the lack of QA. Some problems/ puzzles are simply dumb, such as lichess.org/training/61261.
There was previously a way we could up or down vote puzzles, wasn't it? Back when the puzzles were way better than they are now. Maybe we could have it back? They seem computer generated from matches.

I guess a few puzzles aren't that interesting; I suppose people could report those few in this Lichess Feedback forum.

Well, it is ok, don't overwork this training tool. Quoting "Der beste Zug" by Hort/Jansa in an analogous way: "Go and get your points in real games!"